CN108486976A - Mountain highway, which is filled out, digs intersection road structure and its construction method - Google Patents
Mountain highway, which is filled out, digs intersection road structure and its construction method Download PDFInfo
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- CN108486976A CN108486976A CN201810406200.5A CN201810406200A CN108486976A CN 108486976 A CN108486976 A CN 108486976A CN 201810406200 A CN201810406200 A CN 201810406200A CN 108486976 A CN108486976 A CN 108486976A
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- intersection
- changeover portion
- drain
- section
- french drain
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2201/00—Paving elements
- E01C2201/20—Drainage details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of mountain highways to fill out digging intersection road structure and its construction method, the road structure includes embankment section, excavation section and fill out dig intersection changeover portion, embankment section is equipped with changeover portion step and open drain, fill out dig intersection changeover portion be equipped with fill out dig intersection drainage system, it includes replaceable displacement hull assembled transverse drainage french drain to fill out and dig intersection drainage system, it longitudinally through weeper drain and fills out digging intersection is permeable combines changeover portion with water barrier, it fills out to dig in intersection drainage system and changeover portion step and is equipped with combined type draining ductule, it fills out the combined type draining ductule bottom dug on intersection drainage system and connects longitudinally through weeper drain, longitudinally through weeper drain is communicated with replaceable displacement hull assembled transverse drainage french drain.The present invention can in time be monitored soil body level of ground water in slope surface by the peephole of setting, effectively controls the leaning angle and size of cubic meter of stone section changeover portion step, accelerates speed of application, improve the overall stability of roadbed.
Description
Technical field
The present invention relates to a kind of novel Subgrade in Mountain Area structure, more particularly to a kind of mountain highway fills out the road for digging intersection
Based structures and its construction method.
Background technology
As building in large scale for China's highway is set to, after especially " the logical high speed in county of county " theory proposes, highway is applied
Work will be shifted to mountain area, and highways in mountain areas roadbed is substantially high-fill roadbed, and be filled out digging and interlocked.High-fill roadbed is due to being conducted oneself with dignity
Greatly, the duration is tight, mountain area rainy season is long, and constructs lack of standardization so that roadbed is easy to settle, and is especially filled out in transverse and longitudinal
Intersection is dug, sedimentation is apparent, leads to pavement cracking, depression, strong influence is caused to traffic safety.Highways in mountain areas
It has been the protrusion problem faced at present to fill out and dig intersection roadbed filling.
It is traditional fill out to dig intersection construction processing and be divided into longitudinal fill out digging digging of having a common boundary and laterally fill out and have a common boundary two kinds of processing modes.Before
Person mainly carries out backfill of backbreaking in excavation section, embankment section progress bench excavation, the Construction Mode main drawback is that,
The step in embankment section, which rolls, to be not enough, and it is excessive to be easy to cause posterior settlement, and intersection changeover portion is dug due to the old and new in addition, filling out
Roadbed combine it is insufficient, if without consolidation process, the stability of road structure can be seriously affected；The side of the latter's Ji highways
It is excavated, at the same time, the other side of highway carries out backfilling working, cross fall of the Construction Mode very dependent on highway
Degree, the gradient is different, and form of construction work change is very big, therefore applicability is relatively poor, and geotechnical grid is laid on roadbed, to geotechnique
The intensity of cell compartment, overlap joint requirement is all higher, and difficulty of construction is big.
Dig that intersection road structure is stable, intensity load-carrying properties are good, roll in conclusion being badly in need of searching out one kind at present and filling out
Fully, it settles small novel mountain highway and fills out digging intersection roadbed and its construction method.
Invention content
For the above-mentioned problems in the prior art, fills out digging the purpose of the present invention is to provide a kind of mountain highway and have a common boundary
Locate road structure and its construction method.
The mountain highway, which is filled out, digs intersection road structure, it is characterised in that：Including embankment section, excavation section and fill out
Intersection changeover portion is dug, embankment section is equipped with changeover portion step and open drain, fills out digging intersection changeover portion and is handed over equipped with digging is filled out
Drainage system at boundary, it includes replaceable displacement hull assembled transverse drainage french drain, longitudinally through row to fill out and dig intersection drainage system
It water french drain and fills out digging intersection is permeable combines changeover portion with water barrier, fill out and dig that intersection is permeable to combine changeover portion and mistake with water barrier
It crosses in section step and is equipped with combined type draining ductule, fill out and dig the permeable combined type row combined with water barrier on changeover portion of intersection
Water ductule bottom connects longitudinally through weeper drain, longitudinally through weeper drain and replaceable displacement hull assembled transverse drainage
French drain communicates, and the height of replaceable displacement hull assembled transverse drainage french drain is 1/3 height of excavation section height, and is arranged
Excavation section bottom.
The mountain highway, which is filled out, digs intersection road structure, it is characterised in that：Replaceable displacement hull assembled is laterally arranged
Water french drain includes that drawing and pulling type guide rod band end plate replaces displacement hull and prefabricated assembling type reinforced concrete french drain, prefabricated assembling type reinforced
It is equipped with vertical steel plate in the middle part of concrete french drain, is two cell compartment structures, prefabricated assembling type reinforced concrete french drain top paving by it
Reinforced mesh, each cell compartment bottom surface are respectively equipped with two tracks, and drawing and pulling type guide rod band end plate is replaced displacement hull and is arranged in prefabricated dress
In cell compartment with formula armored concrete french drain, drawing and pulling type guide rod band end plate replaces displacement hull bottom and is equipped with idler wheel, idler wheel and rail
Road matches, and can be slided in track, so that drawing and pulling type guide rod band end plate is replaced draining physical efficiency free skating and enters prefabricated assembling type reinforced mix
Solidifying soil french drain.
The mountain highway, which is filled out, digs intersection road structure, it is characterised in that：It fills out digging intersection changeover portion and is located at embankment
Between section and excavation section, length range is not less than 10m, and it is 4% to fill out and dig the gradient of intersection changeover portion.
The mountain highway, which is filled out, digs intersection road structure, it is characterised in that：It fills out and digs setting below intersection changeover portion
Changeover portion step, inclined angle control within 4 °, and due at step rolled section it is small, therefore use annular compression, effectively disappear
Except compacting blind area, soil body compactness and overall stability are improved.
The mountain highway, which is filled out, digs intersection road structure, it is characterised in that：In embankment section and fill out digging intersection
It is permeable combined with water barrier be respectively set on changeover portion combined type draining ductule, combined type draining ductule include Dense mesh screen,
Geotechnological cloth bag, taper pile crown, grouting pipe and expand end plate, is equipped with Dense mesh screen and geotextiles in grouting pipe successively from the inside to surface
Bag is filled with rubble between Dense mesh screen and grouting pipe；Grouting pipe bottom connects taper pile crown, and top connection expands end plate,
Taper pile crown opens valve equipped with circular cone, expands end plate lower surface and is equipped with peephole, the combined type draining ductule later stage does Grouting Pipe
With.
The mountain highway, which is filled out, digs intersection road structure, it is characterised in that：Changeover portion step passes through static blasting
Method constructs to obtain：It is first drilled with L-shaped static blasting hole in embankment section, loads Static Blasting Agent in L-shaped static blasting hole, together
When installation horizontal stripes hush panel integral pressurized water water supply pipe and lateral strip hush panel integral pressurized water water supply pipe, horizontal stripes hush panel
The outer end end of integral pressurized water water supply pipe and lateral strip hush panel integral pressurized water water supply pipe is solid by end anchor firmware respectively
It is scheduled in slope surface, rock is burst using hydration reaction, obtains changeover portion step.
The mountain highway fills out the construction method for digging intersection road structure, it is characterised in that includes the following steps：
The first step is that the basal layer of former slope surface is cleared up and is compacted, and specifically includes the longitudinal interim ditch of excavation, and longitudinal ditch is dug
Go out earthwork training and makees the ditch ridge on the outside of ditch, in case surface water is discharged into roadbed substrate on the outside of roadbed；Trees, filling within the scope of roadbed land used
Wooden clump etc. is cut down before construction and uproots, and ground surface soil is removed, embankment substrate cleaning, it is smooth, dry after flatten pressure again
Real, table soil 200mm is removed in embankment location, and compactness is not less than 90%；It fills out in embankment bottom and is carried out with materials such as sand, gravel, rubbles
It reinforces, forms it into the good stabilized zone of water stability；
Second step is to carry out filling out the position excavation changeover portion step for digging intersection changeover portion on embankment section, and carry out annular pressure
It is real；
Third step is to excavate replaceable displacement hull assembled transverse drainage french drain, replaceable displacement hull assembly in intersection changeover portion
The height of formula transverse drainage french drain is 1/3 height in excavation section, after the completion of excavation, is laterally arranged in replaceable displacement hull assembled
Prefabricated assembling type reinforced concrete french drain is installed on water french drain, vertical steel is installed in the middle part of prefabricated assembling type reinforced concrete french drain
It is two cell compartment structures by plate, and prefabricated assembling type reinforced concrete french drain top spreads reinforced mesh, and each cell compartment bottom surface is respectively spread
Equipped with two tracks；Drawing and pulling type guide rod replaces displacement hull with end plate and the cell compartment in prefabricated assembling type reinforced concrete french drain is arranged
In, drawing and pulling type guide rod band end plate replaces displacement hull bottom and is equipped with idler wheel, idler wheel and Orbit Matching, and can be slided in track, makes
Drawing and pulling type guide rod band end plate replaces draining physical efficiency free skating and enters prefabricated assembling type reinforced concrete french drain, completes replaceable displacement hull
The construction and installation of assembled transverse drainage french drain；
4th step installs longitudinally through weeper drain above replaceable displacement hull assembled transverse drainage french drain, then is passed through longitudinally
It carries out filling out digging above logical weeper drain intersection is permeable and combine Construction of Transition Section with water barrier, and carry out enhancing ftercompction, it is described to fill out
The permeable transition section length that combine with water barrier of intersection is dug not less than 10m, fills out and digs that intersection is permeable to combine changeover portion with water barrier
Construction is combined using hydraulic rammer and drop hammer type dynamic compaction machinery, compactness is not less than 96%, the gradient 4%；
5th step is that combined type is arranged on changeover portion step to drain ductule, and combined type drains ductule by Dense mesh screen and geotechnique
Cloth bag is wrapped in outside grouting pipe and is formed, and rubble is filled between Dense mesh screen and grouting pipe, and combined type drains ductule, under
End is equipped with taper pile crown, expands end plate and includes peephole, taper pile crown lower end is equipped with circular cone valve, direct with grouting pipe
It is connected；It is provided with the guiding of slope surface inclined tube between each combined type draining ductule, is guided and is connected by slope surface inclined tube, water body can in slope
Ductule is drained through combined type, then guides and is discharged through slope surface inclined tube；
6th step carries out slope surface construction to embankment section, and open drain etc. is arranged in embankment section bottom, then to excavation section
It constructs.
The mountain highway fills out the construction method for digging intersection road structure, it is characterised in that transition is excavated in step 2
Duan Taijie detailed processes are as follows：First several L-shaped static blastings hole is drilled with successively from top to bottom in slope surface, L-shaped is static using drilling tool
The width of blast hole is not less than 2.0m, is highly not more than 1.0m, internal diameter 50mm, laterally arranges one every 0.3m；And then
The Static Blasting Agent configured in advance is put into the duct in L-shaped static blasting hole, in the embodiment of the present invention, according to L-shaped static state
The size of blast hole takes around 2.5kg, then installs horizontal stripes hush panel integral pressurized water moisturizing on L-shaped static blasting hole
Pipe and lateral strip hush panel integral pressurized water water supply pipe, two water supply pipes are utilized respectively end anchor firmware and are fixedly mounted on slope surface 36
On, by water supply pipe moisturizing into L-shaped static blasting hole, hydration reaction occurs with Static Blasting Agent, heat is released, by lithosome
Cracking is burst, which generally requires 3 hours, and crack, which is 3 centimeters, to be advisable, by damaged rock mass profit after static blasting
Manually pick cuts, and the control step gradient is within 4%.It is immediately begun to from top to bottom after substrate is removed as far as possible
It is disposable build molding, if cannot once build from top to bottom, at least retain 3 steps more than every layer of constructing soil, then into
Row placement in layers.
The mountain highway fills out the construction method for digging intersection road structure, it is characterised in that debulking methods are using annular
Compacting is conducive to being abound with, uniformly for shock point in conjunction with fluid pressure type rolling apparatus, enhances overall effect, and it is blind to effectively eliminate compacting
Area.
By using above-mentioned technology, compared with prior art, the present invention has following features and advantageous effect：
1）The present invention can eliminate in such a way that annular rolls and roll insufficient defect at step excavation；
2）The present invention by digging that intersection is permeable to combine changeover portion with water barrier filling out to dig intersection setting and fill out, and with it is longitudinally through
Weeper drain and replaceable displacement hull assembled transverse drainage french drain link together, not only waterproof but also can drain in time, protect
The load-carrying properties filled out and dig intersection are demonstrate,proved, to ensure that the stability of entire road structure；
3）The present invention has buried combined type draining ductule at changeover portion step, and coordinates the guiding of slope surface inclined tube, can supervise at any time
The water level and seepage problem inside roadbed are surveyed, roadbed internal water accumulation is discharged in time, reduces water level, the geological disasters such as landslide are avoided with this
Generation, and combined type draining the ductule later stage can be used as Grouting Pipe；
4）Drawing and pulling type guide rod band end plate in the present invention is replaced displacement hull and is combined with prefabricated assembling type reinforced concrete french drain, can be with
The displacement hull for occurring damaging is replaced in time；
5）The static blasting construction method used in the present invention can effectively control the leaning angle and ruler of cubic meter of stone section changeover portion step
It is very little, accelerate speed of application.
Description of the drawings
Fig. 1 is high embankment schematic cross-sectional view；
Fig. 2 is that mountain highway fills out digging intersection road structure schematic diagram；
Fig. 3 is combined type draining ductule structural schematic diagram；
Fig. 4 is replaceable displacement hull assembled transverse drainage french drain cross-section diagram；
Fig. 5 is static blasting construction schematic diagram；
Fig. 6 is enlarged drawing at A in Fig. 2.
Wherein：1- embankments section；2- excavations section；3-, which is filled out, digs intersection changeover portion；4- changeover portion steps；5- pervious beds；
6- cement nails；7- TGXG；The replaceable displacement hull assembled transverse drainage french drains of 8-；The open drains 9-；10- combined types drain
Ductule；11- Dense mesh screens；12- geotechnique's cloth bag；13- taper pile crowns；14- rubbles；15- grouting pipes；16- expands end plate；17-
Circular cone opens valve；18-, which is filled out, digs intersection drainage system；19- slope surface inclined tubes guide；The longitudinally through weeper drains of 20-；21- fills out digging and hands over
It is permeable at boundary to combine changeover portion with water barrier；22- water barriers；The vertical ductules of 23- are embedded in head layer；24- reinforcement foam concrete
Regulating course；25- reinforced mesh；The vertical steel plates of 26-；27- prefabricated assembling type reinforced concrete french drains；28- tracks；29- idler wheels；
30- drawing and pulling types guide rod band end plate replaces displacement hull；31- peepholes；32-L shape static blastings hole；33- horizontal stripes hush panel is whole
Formula presses water water supply pipe；34- lateral strip hush panel integral pressurized water water supply pipes；35- end anchor firmwares；36- slope surfaces；37- original slope surfaces.
Specific implementation mode
Below in conjunction with Figure of description, the invention will be further described, but protection scope of the present invention is not limited in
This：
As shown in figures 1 to 6, mountain highway of the invention fill out dig intersection road structure, including embankment section 1, excavation section 2 and
It fills out and digs intersection changeover portion 3, embankment section 1 is equipped with changeover portion step 4 and open drain 9, fills out digging intersection changeover portion 3 and is equipped with
Fill out and dig intersection drainage system 18, fill out dig intersection drainage system 18 include replaceable displacement hull assembled transverse drainage french drain 8,
It longitudinally through weeper drain 20 and fills out digging intersection is permeable combines changeover portion 21 with water barrier, fill out that digging intersection is permeable and water barrier
It is equipped with combined type draining ductule 10 in combination changeover portion 21 and changeover portion step 4, fills out that dig intersection permeable with water barrier group
10 bottom of combined type draining ductule closed on changeover portion 21 connects longitudinally through weeper drain 20, longitudinally through weeper drain 20
It is communicated with replaceable displacement hull assembled transverse drainage french drain 8, the height of replaceable displacement hull assembled transverse drainage french drain 8 is
1/3 height of 2 height of excavation section, and be arranged in 2 bottom of excavation section.
It is replaced as shown in figure 4, the replaceable displacement hull assembled transverse drainage french drain 8 includes drawing and pulling type guide rod band end plate
Displacement hull 30 and prefabricated assembling type reinforced concrete french drain 27,27 middle part of prefabricated assembling type reinforced concrete french drain are equipped with vertical steel
It is two cell compartment structures by plate 26, and 27 top of prefabricated assembling type reinforced concrete french drain spreads reinforced mesh 25, each cell compartment bottom
Face is respectively equipped with two tracks 28, and it is blind in prefabricated assembling type reinforced concrete that drawing and pulling type guide rod band end plate replaces the setting of displacement hull 30
In the cell compartment of ditch 27, drawing and pulling type guide rod band end plate replaces 30 bottom of displacement hull and is equipped with idler wheel 29, and idler wheel 29 is matched with track 28,
And can be slided in track 28, so that drawing and pulling type guide rod band end plate is replaced displacement hull 30 and freely slides into prefabricated assembling type reinforced concrete
French drain 27.
It fills out and digs intersection changeover portion 3 between embankment section 1 and excavation section 2, length range is not less than 10m, fills out digging
The gradient of intersection changeover portion 3 is 4%；It fills out and digs 3 lower section setting changeover portion step 4 of intersection changeover portion, inclined angle is controlled at 4 °
Within, and due at step rolled section it is small, therefore use annular compression, effectively eliminate compacting blind area, improve soil body compactness and
Overall stability.
As shown, the present invention is in the embankment section 1 and fills out and digs intersection permeable combined with water barrier and divide on changeover portion 21
Not She Zhi combined type drain ductule 10, as shown in figure 3, the combined type draining ductule 10 include Dense mesh screen 11, geotextiles
Bag 12, taper pile crown 13, grouting pipe 15 and expand end plate 16, is equipped with 11 He of Dense mesh screen in grouting pipe 15 successively from the inside to surface
Geotechnological cloth bag 12 is filled with rubble 14 between Dense mesh screen 11 and grouting pipe 15；15 bottom of grouting pipe connects taper pile crown 13,
Top connection expands end plate 16, and taper pile crown 13 opens valve 17 equipped with circular cone, expands 16 lower surface of end plate and is equipped with peephole 31, multiple
It is effective that box-like 10 later stage of draining ductule does slip casting.
As shown in figure 5, the changeover portion step 4 constructs to obtain by the method for static blasting：First bored in embankment section 1
If L-shaped static blasting hole 32, Static Blasting Agent is loaded in L-shaped static blasting hole 32, while horizontal stripes hush panel monoblock type being installed
Press water water supply pipe 33 and lateral strip hush panel integral pressurized water water supply pipe 34,33 He of horizontal stripes hush panel integral pressurized water water supply pipe
The outer end end of lateral strip hush panel integral pressurized water water supply pipe 34 is fixed on by end anchor firmware 35 in slope surface 36 respectively, profit
Rock is burst with hydration reaction, obtains changeover portion step 4.
As shown in Figure 1, general mountain highway construction needs to carry out filling out excavation construction to former slope surface 37, and filling out digging intersection
Road structure construction when, due to fill out dig intersection road structure include embankment section 1, intersection changeover portion 3 and excavation road
Section 2, specifically comprises the following steps：
The first step is that the basal layer of former slope surface 37 is cleared up and is compacted, and specifically includes the longitudinal interim ditch of excavation, longitudinal ditch
It digs out earthwork training and makees the ditch ridge on the outside of ditch, in case surface water is discharged into roadbed substrate on the outside of roadbed；Trees within the scope of roadbed land used,
Bushes etc. are cut down before construction and uproot, and ground surface soil is removed, embankment substrate cleaning, it is smooth, dry after flatten again
Table soil 200mm is removed in compacting, embankment location, and compactness is not less than 90%；To avoid substrate by Effect of Underground Water Level, at embankment bottom
Portion fills out the materials such as sand excellent with water stability, dysgeogenous, gravel, rubble and carries out consolidation process, and it is good to form it into water stability
Stabilized zone.
Second step is to carry out filling out the position excavation changeover portion step 4 for digging intersection changeover portion 3 on embankment section 1, is gone forward side by side
Row annular compacting, detailed process are as follows：The excavation of step is carried out according to design drawing, as shown in figure 5, using drilling tool first in slope surface
36 are drilled with several L-shaped static blastings hole 32 successively from top to bottom, and the width in L-shaped static blasting hole 32 is not less than 2.0m, and height is not
More than 1.0m, internal diameter 50mm, laterally one is arranged every 0.3m；And then the Static Blasting Agent configured in advance is put into L
In the duct in shape static blasting hole 32, in the embodiment of the present invention, according to the size in L-shaped static blasting hole 32, take around
2.5kg, then installation horizontal stripes hush panel integral pressurized water water supply pipe 33 and lateral strip hush panel are whole on L-shaped static blasting hole 32
Body formula presses water water supply pipe 34, and two water supply pipes are utilized respectively end anchor firmware 35 and are fixedly mounted in slope surface 36, pass through water supply pipe
The moisturizing into L-shaped static blasting hole 32 occurs hydration reaction with Static Blasting Agent, releases heat, lithosome is burst cracking, should
Work progress generally requires 3 hours, and crack, which is 3 centimeters, to be advisable, and digs the damaged artificial pick of rock mass utilization after static blasting
It removes, the control step gradient is within 4%.Disposable build from top to bottom is immediately begun to after substrate is removed as far as possible
Molding, if cannot once build from top to bottom, 3 steps are at least retained more than every layer of constructing soil, then carry out placement in layers,
Debulking methods are compacted using annular, in conjunction with fluid pressure type rolling apparatus, are conducive to being abound with, uniformly for shock point, enhance whole effect
Fruit effectively eliminates compacting blind area.
Third step is to excavate replaceable displacement hull assembled transverse drainage french drain 8, replaceable draining in intersection changeover portion 3
The height of body assembled transverse drainage french drain 8 is 1/3 height in excavation section 2, after the completion of excavation, is assembled in replaceable displacement hull
Prefabricated assembling type reinforced concrete french drain 27 is installed, as shown in figure 4, pre- in the embodiment of the present invention on formula transverse drainage french drain 8
27 sectional dimension of assembled steel reinforced concrete french drain processed is 50*30cm, and 27 middle part of prefabricated assembling type reinforced concrete french drain is equipped with
It is two cell compartment structures by vertical steel plate 26, and 27 top of prefabricated assembling type reinforced concrete french drain spreads reinforced mesh 25, each
Cell compartment bottom surface is respectively equipped with two tracks 28；Drawing and pulling type guide rod band end plate replaces the setting of displacement hull 30 prefabricated assembling type reinforced mixed
In the cell compartment of solidifying soil french drain 27, it is 20*18cm that drawing and pulling type guide rod band end plate, which replaces 30 sectional dimension of displacement hull, and bottom is equipped with
Idler wheel 29, idler wheel 29 are matched with track 28, and can be slided in track 28, and drawing and pulling type guide rod band end plate is enable to replace displacement hull 30 certainly
By slide-in prefabricated assembling type reinforced concrete french drain 27, the construction peace of replaceable displacement hull assembled transverse drainage french drain 8 is completed
Dress.
4th step installs longitudinally through weeper drain 20 above replaceable displacement hull assembled transverse drainage french drain 8, such as
Shown in Fig. 2 and Fig. 6, the section of longitudinally through weeper drain 20 is the circle of radius 20cm；Again on longitudinally through weeper drain 20
Fang Jinhang, which is filled out, to be dug the permeable changeover portion 21 that combine with water barrier of intersection and constructs, and carries out enhancing ftercompction, and described to fill out digging intersection saturating
Water combines 21 length of changeover portion with water barrier and is not less than 10m, and compactness is not less than 96%, and it is saturating to fill out digging intersection for the gradient 4%
It is the double-deck TGXG 7 of 5cm thickness respectively that water, which combines changeover portion 21 with water barrier from top to bottom, water barrier 22, pervious bed 5, is erected
Cement nail 6 is used to ductule insertion head layer 23, water barrier 22 and reinforcement foam concrete regulating course 24, the double-deck TGXG 7
It is fixed on water barrier 22, should stretch smooth-going when being laid with TGXG, be close to sub-layer, must not there is fold.Sub-layer answer it is smooth,
Forbid have hard projection, 22 thickness of water barrier is 3cm, and water barrier 22 uses to be filled under SBS modified pitch, water barrier 22
The rubble of 2cm thickness, constitutes pervious bed 5, and vertical ductule insertion head layer 23, the 3cm that 5 lower section of pervious bed is equipped with 3cm thickness successively are thick
Water barrier 22 and 5cm thickness reinforcement foam concrete regulating course 24.Filling out digging, intersection is permeable combines changeover portion with water barrier
It is good that 21 use hydraulic rammers and drop hammer type dynamic compaction machinery are combined effect.For the small region of construction section, for example at step and turn
At angle, effective thickness is compacted according to hydraulic rammer, is successively tamped, the every 4 meters of progress reinforcement of drop hammer type dynamic compaction machinery is taken to other positions,
For the big region of construction section, it is combined and rolls using hydraulic rammer and 32 tons of high performance strongs rammer vibratory rollers, constructed
Longitudinally through weeper drain 20, slope surface inclined tube guiding 19 after and replaceable 8 groups of displacement hull assembled transverse drainage french drain
The important drainage system 18 for digging intersection road structure is filled out at mountain highway.
5th step is that combined type is arranged on changeover portion step 4 to drain ductule 10, and combined type drains ductule 10 by close
Mesh net 11 and geotechnological cloth bag 12 are wrapped in 15 outside of grouting pipe and are formed, and rubble is filled between Dense mesh screen 11 and grouting pipe 15
14, the visible Fig. 3 of structural schematic diagram, combined type drain diameter 42mm, the long 150mm of ductule 10, and end, which is equipped with, thereon expands
End plate 16, lower end are equipped with taper pile crown 13, expand the peephole 31 that end plate 16 includes diameter 10mm, 13 lower end of taper pile crown
Equipped with circular cone valve 17, it is connected directly with grouting pipe 15；Slope surface inclined tube is provided between each combined type draining ductule 10 to lead
Draw 19, combined type draining ductule 10 is together in series by slope surface inclined tube guiding 19, water body can drain small through combined type in slope
Conduit 10, then through 19 discharge of slope surface inclined tube guiding.The construction of slope surface 36, setting open drain 9 etc. finally are carried out to embankment section 1,
It constructs again to excavation section 2.
Claims (9)
1. mountain highway, which is filled out, digs intersection road structure, it is characterised in that：Including embankment section（1）, excavation section（2）And fill out digging
Intersection changeover portion（3）, embankment section（1）It is equipped with changeover portion step（4）The open drain and（9）, fill out and dig intersection changeover portion
（3）Intersection drainage system is dug equipped with filling out（18）, fill out and dig intersection drainage system（18）Including replaceable displacement hull assembled cross
To weeper drain（8）, longitudinally through weeper drain（20）And it fills out digging intersection is permeable combines changeover portion with water barrier（21）, fill out digging
Intersection is permeable to combine changeover portion with water barrier（21）With changeover portion step（4）Inside it is equipped with combined type draining ductule（10）,
Filling out digging, intersection is permeable combines changeover portion with water barrier（21）On combined type drain ductule（10）Bottom connection is longitudinally through
Weeper drain（20）, longitudinally through weeper drain（20）With replaceable displacement hull assembled transverse drainage french drain（8）It communicates, it can be more
Change gear water body assembled transverse drainage french drain（8）Height be excavation section（2）1/3 height of height, and be arranged on excavation road
Section（2）Bottom.
2. mountain highway according to claim 1, which is filled out, digs intersection road structure, it is characterised in that：Replaceable displacement hull dress
With formula transverse drainage french drain（8）Displacement hull is replaced including drawing and pulling type guide rod band end plate（30）It is blind with prefabricated assembling type reinforced concrete
Ditch（27）, prefabricated assembling type reinforced concrete french drain（27）Middle part is equipped with vertical steel plate（26）, it is two cell compartment structures by it, in advance
Assembled steel reinforced concrete french drain processed（27）Top spreads reinforced mesh（25）, each cell compartment bottom surface is respectively equipped with two tracks
（28）, drawing and pulling type guide rod band end plate replacement displacement hull（30）It is arranged in prefabricated assembling type reinforced concrete french drain（27）Cell compartment
In, drawing and pulling type guide rod band end plate replaces displacement hull（30）Bottom is equipped with idler wheel（29）, idler wheel（29）With track（28）Matching, and
It can be in track（28）Sliding makes drawing and pulling type guide rod band end plate replace displacement hull（30）Prefabricated assembling type reinforced coagulation can freely be slid into
Native french drain（27）.
3. mountain highway according to claim 1, which is filled out, digs intersection road structure, it is characterised in that：It fills out and digs intersection transition
Section（3）Positioned at embankment section（1）With excavation section（2）Between, length range is not less than 10m, fills out and digs intersection changeover portion（3）'s
The gradient is 4%.
4. mountain highway according to claim 1, which is filled out, digs intersection road structure, it is characterised in that：It fills out and digs intersection transition
Section（3）Changeover portion step is arranged in lower section（4）, inclined angle control within 4 °, and due at step rolled section it is small, therefore use
Annular compression effectively eliminates compacting blind area, improves soil body compactness and overall stability.
5. mountain highway according to claim 1, which is filled out, digs intersection road structure, it is characterised in that：In embankment section（1）
It is interior and fill out digging intersection is permeable combines changeover portion with water barrier（21）On be respectively set combined type draining ductule（10）, combined type
Drain ductule（10）Including Dense mesh screen（11）, geotechnological cloth bag（12）, taper pile crown（13）, grouting pipe（15）And expand end plate
（16）, grouting pipe（15）On from the inside to surface successively be equipped with Dense mesh screen（11）With geotechnological cloth bag（12）, Dense mesh screen（11）With slip casting
Conduit（15）Between be filled with rubble（14）；Grouting pipe（15）Bottom connects taper pile crown（13）, top connection expansion end plate
（16）, taper pile crown（13）Valve is opened equipped with circular cone（17）, expand end plate（16）Lower surface is equipped with peephole（31）, combined type row
Water ductule（10）It is effective that later stage does slip casting.
6. mountain highway according to claim 1, which is filled out, digs intersection road structure, it is characterised in that：Changeover portion step（4）
It constructs to obtain by the method for static blasting：First in embankment section（1）Inside it is drilled with L-shaped static blasting hole（32）, L-shaped static blasting
Hole（32）Interior filling Static Blasting Agent, while horizontal stripes hush panel integral pressurized water water supply pipe being installed（33）With lateral strip hush panel
Integral pressurized water water supply pipe（34）, horizontal stripes hush panel integral pressurized water water supply pipe（33）With lateral strip hush panel integral pressurized water
Water supply pipe（34）Outer end end pass through end anchor firmware respectively（35）It is fixed on slope surface（36）On, using hydration reaction rock
It bursts, obtains changeover portion step（4）.
7. a kind of filling out the construction method for digging intersection road structure based on mountain highway described in claim 1, it is characterised in that
Include the following steps：
The first step is to former slope surface（37）Basal layer cleared up and be compacted, specifically include the longitudinal interim ditch of excavation, it is longitudinal
Ditch digs out earthwork training and makees the ditch ridge on the outside of ditch, in case surface water is discharged into roadbed substrate on the outside of roadbed；Tree within the scope of roadbed land used
Wood, bushes etc. are cut down before construction and uproot, and ground surface soil is removed, embankment substrate cleaning, it is smooth, dry after it is whole again
Concora crush is real, and table soil 200mm is removed in embankment location, and compactness is not less than 90%；It is filled out with materials such as sand, gravel, rubbles in embankment bottom
It is reinforced, forms it into the good stabilized zone of water stability；
Second step is in embankment section（1）On fill out and to dig intersection changeover portion（3）Position excavate changeover portion step（4）, and
Carry out annular compacting；
Third step is in intersection changeover portion（3）Excavate replaceable displacement hull assembled transverse drainage french drain（8）, replaceable draining
Body assembled transverse drainage french drain（8）Height be excavation section（2）1/3 height, after the completion of excavation, in replaceable displacement hull
Assembled transverse drainage french drain（8）Upper installation prefabricated assembling type reinforced concrete french drain（27）, prefabricated assembling type reinforced concrete
French drain（27）Middle part is installed by vertical steel plate（26）, it is two cell compartment structures, prefabricated assembling type reinforced concrete french drain by it（27）
Top spreads reinforced mesh（25）, each cell compartment bottom surface is respectively equipped with two tracks（28）；Drawing and pulling type guide rod band end plate replaces draining
Body（30）It is arranged in prefabricated assembling type reinforced concrete french drain（27）Cell compartment in, drawing and pulling type guide rod band end plate replaces displacement hull
（30）Bottom is equipped with idler wheel（29）, idler wheel（29）With track（28）Matching, and can be in track（28）Sliding, makes drawing and pulling type guide rod
Band end plate replaces displacement hull（30）Prefabricated assembling type reinforced concrete french drain can freely be slid into（27）, complete replaceable displacement hull dress
With formula transverse drainage french drain（8）Construction and installation；
4th step is in replaceable displacement hull assembled transverse drainage french drain（8）Top is installed by longitudinally through weeper drain（20）, then
In longitudinally through weeper drain（20）Top fill out digging intersection is permeable combines changeover portion with water barrier（21）Construction, and carry out
Enhance ftercompction, it is described to fill out digging intersection is permeable combines changeover portion with water barrier（21）Length is not less than 10m, and it is saturating to fill out digging intersection
Water combines changeover portion with water barrier（21）Construction is combined using hydraulic rammer and drop hammer type dynamic compaction machinery, compactness is not less than
96%, the gradient 4%；
5th step is in changeover portion step（4）Upper setting combined type drains ductule（10）, combined type draining ductule（10）By
Dense mesh screen（11）With geotechnological cloth bag（12）It is wrapped in grouting pipe（15）Outside is formed, Dense mesh screen（11）And grouting pipe（15）It
Between be filled with rubble（14）, combined type draining ductule（10 upper ends, which are equipped with, expands end plate（16）, lower end is equipped with taper pile crown
（13）, expand end plate（16）Include peephole（31）, taper pile crown（13）Lower end is equipped with circular cone valve（17）, with grouting pipe
（15）It is connected directly；Each combined type drains ductule（10）Between be provided with slope surface inclined tube guiding（19）, led by slope surface inclined tube
Draw（19）It connects, water body can drain ductule through combined type in slope（10）, then through the guiding of slope surface inclined tube（19）Discharge；
6th step is to embankment section（1）Carry out slope surface（36）Construction, and in embankment section（1）Open drain is arranged in bottom（9）Deng,
Again to excavation section（2）It constructs.
8. mountain highway according to claim 7 fills out the construction method for digging intersection road structure, it is characterised in that step
Changeover portion step is excavated in two（4）Detailed process is as follows：Using drilling tool first in slope surface（36）It is drilled with several L-shaped successively from top to bottom
Static blasting hole（32）；And then the Static Blasting Agent configured in advance is put into L-shaped static blasting hole（32）Duct in, then
In L-shaped static blasting hole（32）Upper installation horizontal stripes hush panel integral pressurized water water supply pipe（33）With lateral strip hush panel monoblock type
Press water water supply pipe（34）, two water supply pipes are utilized respectively end anchor firmware（35）It is fixedly mounted on slope surface（36）On, pass through moisturizing
Pipe is to L-shaped static blasting hole（32）Interior moisturizing occurs hydration reaction with Static Blasting Agent, releases heat, lithosome is burst out
It splits, cuts the damaged artificial pick of rock mass utilization after static blasting, the control step gradient is within 4%；It is finished in substrate removing
Disposable build molding from top to bottom is immediately begun to afterwards, if cannot once build from top to bottom, more than every layer of constructing soil
At least retain 3 steps, then carries out placement in layers.
9. mountain highway according to claim 8 fills out the construction method for digging intersection road structure, it is characterised in that compacting
Method is compacted using annular, in conjunction with fluid pressure type rolling apparatus.
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| CN109610435A (en) * | 2019-01-29 | 2019-04-12 | 中国机械设备工程股份有限公司 | A kind of loess high roadbed cheuch ground discharge structure and its laying method |
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| CN110172884A (en) * | 2019-06-04 | 2019-08-27 | 中信国安建工集团有限公司 | A kind of Subgrade in Mountain Area and construction method |
| CN112681043A (en) * | 2020-12-18 | 2021-04-20 | 湖北省路桥集团有限公司 | Roadbed splicing and widening structure and construction method |
| CN113403904A (en) * | 2021-07-21 | 2021-09-17 | 中信国安建工集团有限公司 | Highway filling and digging boundary roadbed structure and construction operation method |
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